<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--
  Created by IntelliJ IDEA.
  User: 24044
  Date: 2021/6/7
  Time: 13:57
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>书城首页</title>
    <%@ include file="/pages/common/head.jsp"%>
    <script type="text/javascript">
        /*
            方式一：不利用Ajax技术
            $(function () {
                //给“加入购物车”按钮，绑上单击事件
                $("button.addToCart").click(function () {
                    var bookId = $(this).attr("bookId");
                    location.href="http://localhost:8080/bookshop_22/cartServlet?action=addItem&id="+bookId;

                })
            })
         */

        //方式二：运用Ajax技术
        $(function () {
            //给“加入购物车”按钮，绑上单击事件
            $("button.addToCart").click(function () {
                var bookId = $(this).attr("bookId");
                $.getJSON("http://localhost:8080/bookshop_22/cartServlet","action=ajaxAddItem&id="+bookId,function (data) {
                    $("#cartTotalCount").text("您的购物车中有"+data.totalCount+"件商品");
                    $("#cartLastName").text("【"+data.lastName+"】 ");
                })
            })
        })
    </script>
</head>
<body>

<div id="header">
    <img class="logo_img" alt="" src="static/img/logo.gif" >
    <span class="wel_word"><h8>书城</h8></span>
    <div>
<%--        如果用户还没有登录，则显示登录和注册菜单--%>
        <c:if test="${empty sessionScope.user}">
            <a href="pages/user/login.jsp">登录</a> |
            <a href="pages/user/regist.jsp">注册</a> &nbsp;&nbsp;
        </c:if>
<%--        如果用户已经登录，则显示登录成功之后的用户信息--%>
        <c:if test="${not empty sessionScope.user}">
            <span>欢迎<span class="um_span">${sessionScope.user.username}</span>光临尚硅谷书城</span>
            <a href="pages/order/order.jsp">我的订单</a>
            <a href="userServlet?action=logout">注销</a>&nbsp;&nbsp;
        </c:if>

        <a href="pages/cart/cart.jsp">购物车</a>
        <a href="pages/manager/manager.jsp">后台管理</a>
    </div>
</div>
<div id="main">
    <div id="book">
        <div class="book_cond">
            <form action="client/bookServlet?" method="get">
                <input type="hidden" name="action" value="pageByPrice"/>
                价格：<input id="min" type="text" name="min" value="${param.min}"> 元 -
                <input id="max" type="text" name="max" value="${param.max}"> 元
                <input type="submit" value="查询" />
            </form>
        </div>
        <div style="text-align: center">
            <c:if test="${empty sessionScope.cart.items}">
                <%--                购物车为空的时候输出--%>
                <span id="cartTotalCount"></span>
                <div>
                    <span style="color: red" id="cartLastName">当前购物车为空</span>
                </div>
            </c:if>
            <c:if test="${not empty sessionScope.cart.items}">
                <%--                购物车为非空的时候输出--%>
                <span id="cartTotalCount">您的购物车中有${sessionScope.cart.totalCount}件商品</span>
                <div>
                    您刚刚将<span style="color: red" id="cartLastName">${sessionScope.lastName}</span>加入到了购物车中
                </div>
            </c:if>

        </div>
<%--        开始--%>

        <c:forEach items="${requestScope.page.items}" var="book">
            <div class="b_list">
                <div class="img_div">
                    <img class="book_img" alt="" src="${book.imgPath}" />
                </div>
                <div class="book_info">
                    <div class="book_name">
                        <span class="sp1">书名:</span>
                        <span class="sp2">${book.name}</span>
                    </div>
                    <div class="book_author">
                        <span class="sp1">作者:</span>
                        <span class="sp2">${book.author}</span>
                    </div>
                    <div class="book_price">
                        <span class="sp1">价格:</span>
                        <span class="sp2">￥${book.price}</span>
                    </div>
                    <div class="book_sales">
                        <span class="sp1">销量:</span>
                        <span class="sp2">${book.sales}</span>
                    </div>
                    <div class="book_amount">
                        <span class="sp1">库存:</span>
                        <span class="sp2">${book.stock}</span>
                    </div>
                    <div class="book_add">
                        <button bookId="${book.id}" class="addToCart" >加入购物车</button>
                    </div>
                </div>
            </div>
        </c:forEach>
<%--        结束--%>

    </div>

    <%--		分页条开始--%>
    <%@include file="/pages/common/page_nav.jsp"%>
    <%--		分页条结束--%>

</div>

<%--	静态包含页脚内容--%>
<%@include file="/pages/common/footer.jsp"%>
</body>
</html>
